Beater



E. WSTERMAN.

BEATER. APPucATmu min msgs, 1922.

1,438,281 Patented Dec. 1 2, 1922.

2 SHEETS-SHEET 2.

A smul Patented' ec. l2, 122.

FREDERICK WESTEBMAN, F CHICAGO, LLENOIS.

BEATER.

Application filed February G, 1922. Serial Ho. 534,301.

To all #may concern:

' Be it known that l, FREDERICK WESTER- 'V MAN, a citizenof the United States, residf ingin Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Beaters, of

. which the -following is a specification.

This invention relates to apparatus for agitating, mixing, beating or whipping liquids, or semi-liquids, but more particularly to such -as is used by confectioners,

bakers and other makers of food products.

The primary object of the presentinvention is to provide'a simple and improved apparatus ofthis class which will eicientlyl operate upon large quantities of material.

The many other objects and advantages of my improved apparatus will be betteruni derstood byreference to the following speciiication when considered in connection with the accompanying drawings illustrating a selected embodiment thereof, in which Fig. 1 is' aside elevationl of the beating' 'ap aratus. ig. 2 is the-same asFig. 1, front elevation.

3 is an enlarged vertical section on the line 3-3 of l? ig. 1, and

.of proper size is mounted on the column 10 in the housing 14. A. horizontal shaft 15 is revolubly mounted in suitable'bearin'gs on the coliimn 10, 'and this shaft'is' driven by the motor. 13 through vthe mediumV of the belt 16 operating over the' pulley 17. A bevel gear 18'on the inner or forward end of the I shaft 15 meshes with a gear 19 keyed on the upper extremity of a vertical shaft 20.

The shaft 20 is supported in bearings 21 in the bracket 22 secured on the front face .of the column 10 by bolts 23. The gear 19 in the present embodiment contains a chamv hier 24 within which molten. lead may be 'to poured to provide propervcounterbalance. This gear 19 is retained upon the shaft 2O by a n'ut 25. A pan 27 tion of the. bracket 22 to prevent the dripping of oil and form with the cover 28 a housingfor the gear 19. A crank 30 `is is provided on the upper por-y formed on the lower end of the shaft 2O and the odset weight of the crank is counterbalanced by lead deposited in suicient quantity in a receptacle 31 provided for the pura9 pose. c

A vertically disposed sleeve 32 is formed on the outer end ofthe' crank 30 and a'shaft 33 is supportedin bearings 34 and 35 in this sleeve. An internal gear 36 is secured 65 within the housing 37 on the bracket 22 and a pinion 38 on the upper end 'of the shaft`y33 meshes with this gear. A washer 39 is secured upon the upper face of the crank 30 beneath the pinion 36. and another washer v70 4() fits on the reduced lower portion 41 pf the shaft above the bearing 35. An oil p n. 42 is carried on the shaft 33 below the bearing 38.

A universal joint 43 is secured upon the 75 lower end of the shaft 33 by means of apin 29 passing through the end portion of the shaft. This joint connects the lower end of the shaft 33 with the upper end of a paddle shaft 44 having a paddle 45 secured on its 80A lower extremity. Any suitable type of paddle may be used.

A bracket 46 on the lower portion of the column supports theusual receptacle within which the paddle operates. The recep- 85 tacle 47 in the present embodiment is provided on its outer wall with aiiange or ring 1 4S. which rests on the 'bracket v46 and is locked thereon by clamps 49 to firmly position the receptacle on the bracket. A cover 90 50 fits on the, top ofthe receptacleand is provided with a small central opening 51 to permit the passage of the shaft 44 therethrough.

The shaft 33 is given a combined rotation g5 and revolution by the rotation of the shaft's I20, due to the meshing of the pinion 33 and the. gear 34, and this movement is transmitted to the upperl end of the paddle shaft 44 by the universal joint 43. The shaft 44 is /100 connected to the column 1() .slightly above the cover of the receptacle by a support 55 somewhat resembling a gimbal joint. This support permits the freemotation of the shaft but converts the simple movement ofrevolution into one in which the portions of the i shaft 4above and below the support trace conical surfaces with thefapices of the cones l s at the fixed center of the support. This movement of the shaft 44 abolita fixed cen- 110 ter located intermediate its ends'willbe'hereinafter referred to asthe conical movement y ofthe paddle shaft. The paddle 45 is moved about the receptacle and simultaneously rotated about its axis.

ln the support 55, ahorizontal shaft 56 projects through the column 10 and is revoluble in bearings 57 and 58 bolted thereto. A ring 59 is formed on the outer end of this shaft and this ring is held against the end 60 of the bearing 58 by the adjustable nut 6l on the inner end of the shaft. A sleeve 62 is supported in the ring 59 by a pair of oppositely disposed pivots 63 having their common axes at a right angle to the axis ofthe shaft 56 and intersecting the same at the center of the ring 59. This sleeve closely fits about the'shaft 44 and forms a bearing therefor. T he point of intersection of these axes is the fixed center about which the shaft 44 moves. An .oil pan 64 is secured to the shaft 44 below the support 55.

It has been common practice in beaters of this class to move the paddle about the receptacle and at the same time cause it to be rotated about its own axis, but this was accomplished by moving the paddle shaft in parallel relation with the operating shaft.-

Such a mode of operation required that the receptacle be practically uncovered or that a very ylarge opening be provided in the cover to permit the movement of the paddle shaft. My improved beater construction makes it possible to practically completely cover the receptacle. The support is preferably located as near to the cover as possible and, when so placed, the portion of the shaft passing through the cover will move in an arc only slightly greater than the diameter of the shaft itself, Aalthough the beater will move completely around the receptacle. The support 55 further stiffens the shaft 44"and causes the paddle tov operate more satisfactorily, particularly in ma teria-ls of thick consistency.

In the prior constructions of beaters of this general type, it has heretofore been customary to employ a sho-rt paddle shaft (to avoid lateral strain thereon) and this necessitates bringing the driving mechanism for said shaft close to the receptacle for the material being mixed. An objection to this construction is that the vapors rising from the receptacle during the mixing operation tend to solidify and gum up the oil -used in the gearing` and bearings close above it and this is a serious objection. By my present invention, the receptacle can be arranged at a considerable distance below the driving mechanism and the vpaddle shaft can be made of much greater length.

ineaaesi A further advantage of my invention is that by causing the paddle shaft to revolve and travel within the receptacle at an angle, the paddle tends to pick up the liquid being mixed and thus insures a more effective and quicker mixing of the material.

l am aware that many changes in the form and arrangement of the various parts may( be made without departing-from the spirit of my invention and lt reserve the right to make all such as fairly fall within the scope of the following claims.

l claim as my invention: i

l. ln apparatus of the class described, an operating shaft capable of simultaneous rotation and revolution, and a paddle shaft operatively connected to said operating shaft by a flexible joint.

2. In apparatus of the class described, an

lope-rating shaft, means for imparting to said shaft a combined rotation and revolution, and a paddle shaft connected by a universal jointl to one end of said o-perating shaft.

3. In apparatus of the class described, a paddle shaft supported in a bearing intermediate its ends and having a paddle at one end thereof, and means for impart-ing vsi-multaneous rotation and conical movementto said shaft.

4. In apparatus of the class described, a paddle shaft having a paddle at the outer end thereof, and means for simultaneously rotating said shaft and causing the same to describe a double coneabout a fixed point in its axis intermediate the ends thereof.

5. In an apparatus of the class described, i

'said shaft a. simultaneous rotation and revolution. a paddle shaftforming an extension. of 'said operating shaft and connected thereto by a universal joint, a bearing for said shaft located intermediate its ends, and a support for said bearing adapted to allow the same to tip in4 substantially all directions, said bearing being disposed in substantially the line of the axis of revolutionof said operating shaft.

FREDERICK WESTERMAN. 

